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4Q23 & FY23 Financial Results

Real Estate Strategy Dealership Property Breakdown by Region (as of December 31, 2023) Dealerships GPI is shifting toward owning more real estate: Region Owned Leased United States 108 36 United Kingdom 26 29 Total 134 65 Control of dealership real estate is a strong strategic asset Ownership means better flexibility and lower cost Owned vs. Leased Property Trend As of December 31, 2023, the Group 1 owned ~$2.0B of gross real estate (67% of dealership locations) financed through ~$0.8B of mortgage debt. Group1Auto.com - Investor Presentation 157 169 202 199 # Properties 43% 38% 36% 33% % Leased % Owned 57% 62% 64% 67% 2017 2019 2021 2023 Page 18

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